Reservation
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B2 noun /ˌrezəˈveɪʃən/

Reservation

reserva
Meaning
the action of reserving something; an arrangement whereby something is reserved for a particular person; a qualification to an expression of agreement or approval
Example
I made a reservation at the restaurant for tonight.
Hice una reserva en el restaurante para esta noche.
A2 noun /reɪs/

race

carrera
Meaning
a competition of speed, or a group of people with similar characteristics
Example
The race was very exciting, with many competitors.
La carrera fue muy emocionante, con muchos competidores.
C1 adjective /riˈækʃəˌneri/

reactionary

reaccionario
Meaning
Opposing political or social progress or reform; extremely conservative.
Example
The group took a reactionary stance against the new policies.
El grupo adoptó una postura reaccionaria contra las nuevas políticas.
C1 adjective /rɪˈpʌl.sɪv/

Repulsive

repulsivo; desagradable; que causa aversión
Meaning
extremely unpleasant; causing strong dislike or disgust
Example
The smell of rotten eggs was absolutely repulsive.
El olor a huevos podridos era absolutamente repulsivo.
C1 noun /rəʊˈbɒt.ɪk ˈsɜː.dʒər.i/

robotic surgery

cirugía robótica
Meaning
Surgery performed with the assistance of robotic systems to enhance precision and reduce invasiveness.
Example
Robotic surgery enhances precision in complex procedures.
La cirugía robótica mejora la precisión en procedimientos complejos.
C1 verb /rɪˈsɪprəˌkeɪt/

reciprocate

reciprocidad
Meaning
To respond to an action or gesture by making a corresponding one.
Example
She smiled at him, and he reciprocated with a warm hug.
Ella sonrió, y él reciprocó con un abrazo cálido.
C2 verb /ˌrɛprɪˈhɛnd/

reprehend

reprender
Meaning
to express disapproval or criticism of someone or something
Example
The teacher reprehended the student for being dishonest.
El maestro reprendió al estudiante por ser deshonesto.
C1 noun /ˈrɛɡjəleɪtər/

regulator

regulador
Meaning
a person or device that controls or maintains the operation of a system
Example
The government appointed a new regulator for the financial sector.
El gobierno nombró un nuevo regulador para el sector financiero.
C1 verb /ˈrɛzəneɪt/

resonate

resonar
Meaning
To produce or be filled with a deep, full, and reverberating sound; to evoke a feeling or memory.
Example
Her words resonated with the audience.
Sus palabras resonaron con la audiencia.
C1 noun /rʌk/

Ruck

empujón; multitud desordenada
Meaning
a situation where a crowd of people are pushing against each other; a disorderly crowd
Example
There was a ruck at the football match.
Hubo un empujón en el partido de fútbol.
C1 noun /ˈrʌfiən/

Ruffian

bribón; persona violenta;
Meaning
a violent person, especially one involved in crime; a brutal or lawless person
Example
The ruffian threatened the shopkeeper for money.
El bribón amenazó al tendero por dinero.
B2 noun/adjective /rɪˈpʌblɪkən/

republican

republicano
Meaning
a member or supporter of a republican political party or system
Example
The republican candidate won the election.
El candidato republicano ganó las elecciones.
B2 adjective /ˈreɪʃəl/

racial

racial
Meaning
relating to a race of people
Example
Racial equality is an important issue in many societies.
La igualdad racial es un tema importante en muchas sociedades.
A2 noun reɪndʒ

range

alcance
Meaning
The extent or scope of something; the distance that can be covered or the limits within which something operates.
Example
The new electric car has a range of 400 miles.
El nuevo coche eléctrico tiene un alcance de 400 millas.
C1 noun /ˈruːdɪmənt/

rudiment

rudimentos
Meaning
A basic principle, element, or fundamental part of something.
Example
He learned the rudiments of music before joining the band.
Él aprendió los rudimentos de la música antes de unirse a la banda.
C1 noun /ˈrɛvərəns/

reverence

reverencia
Meaning
deep respect for someone or something
Example
The students showed reverence to their teacher.
Los estudiantes mostraron reverencia hacia su maestro.
B2 noun, verb, adjective /ræŋk/

rank

rango
Meaning
A position in a hierarchy; to place in order according to importance or quality.
Example
She quickly rose to a senior rank in the company.
Ella rápidamente ascendió a un rango superior en la empresa.
C1 noun/verb /ˈrɛprɪˌmænd/

reprimand

reprensión
Meaning
A formal expression of disapproval; to scold or criticize someone officially.
Example
The teacher reprimanded the student for being late.
El maestro reprendió al estudiante por llegar tarde.
C1 noun /rɔ ˈtɜrmərɪk/

Raw Turmeric

cúrcuma cruda
Meaning
fresh unprocessed root of the turmeric plant used as a spice and medicine
Example
Grate raw turmeric into the curry for authentic flavor.
Ralla la cúrcuma cruda en el curry para un sabor auténtico.
B2 adjective /rɪˈflektɪv/

Reflective

reflexivo; pensativo; capaz de reflejar luz o imágenes
Meaning
thoughtful; contemplative; able to reflect light or images
Example
After the meeting, he was in a reflective mood.
Después de la reunión, él estaba en un estado reflexivo.
C2 noun /ˌrep.ɑːˈtiː/

Repartee

repartee
Meaning
conversation or speech characterized by quick, witty comments or replies
Example
The dinner party was filled with brilliant repartee between the guests.
La cena estuvo llena de brillantes réplicas entre los invitados.
B2 verb /ˌriː.kənˈstrʌkt/

reconstruct

reconstruir
Meaning
to build or form something again after it has been damaged or destroyed
Example
The city was reconstructed after the earthquake.
La ciudad fue reconstruida después del terremoto.
B2 noun /ˈrɒbəɹi/

robbery

robo
Meaning
the crime of stealing from someone or somewhere using force or threat
Example
The police are investigating the robbery at the local store.
La policía está investigando el robo en la tienda local.
B2 noun /ˈrɛfjuːdʒ/

refuge

refugio
Meaning
a place that provides shelter or protection from danger or distress
Example
The villagers took refuge in the temple during the storm.
Los aldeanos buscaron refugio en el templo durante la tormenta.
B1 verb /rɪˈspɒnd/

respond

responder
Meaning
to give an answer or reply; to react to something
Example
Please respond to my email as soon as possible.
Por favor responde a mi correo electrónico lo antes posible.
B2 noun /ˈriːteɪlər/

retailer

minorista
Meaning
a person or business that sells goods to consumers rather than to other businesses
Example
The retailer offers discounts on electronic products.
El minorista ofrece descuentos en productos electrónicos.
C2 noun /ˌrækənˈtɜːr/

Raconteur

felicidad
Meaning
a person who tells anecdotes in a skillful and amusing way
Example
The old man was a gifted raconteur who entertained everyone with his stories.
Ella no pudo ocultar su felicidad cuando recibió el premio.
B1 noun /reɪ/

ray

rayo
Meaning
a narrow beam of light, heat, or radiation
Example
A ray of sunlight broke through the clouds.
Un rayo de luz del sol rompió a través de las nubes.
B2 adjective /ˈrɑː.ki/

Rocky

rocoso; inestable; difícil
Meaning
full of rocks; unsteady; difficult
Example
The rocky path made hiking difficult for the tourists.
El camino rocoso hizo que el senderismo fuera difícil para los turistas.
C2 adjective /rɪˈmɪs/

remiss

negligente
Meaning
Negligent in performing a duty or responsibility.
Example
The manager was remiss in not checking the financial reports carefully.
El gerente fue negligente al no revisar cuidadosamente los informes financieros.
B2 verb /ˈrɛkən/

reckon

suponer
Meaning
To think, believe, or expect something; to calculate or estimate.
Example
I reckon it will rain later today.
Yo calculo que lloverá más tarde hoy.
C1 noun /rɪˈdʌn.dəns/

Redundance

redundancia
Meaning
the state of being not or no longer needed or useful; superfluous repetition of information
Example
The document contained redundance that made it unnecessarily long.
El documento contenía redundancia que lo hacía innecesariamente largo.
B1 verb /rɪˈtɜrnɪŋ/

returning

regreso
Meaning
Coming or going back to a place or person.
Example
The group is returning to the port on December 25th.
El grupo está regresando al puerto el 25 de diciembre.
B2 adjective /ˈrɪski/

risky

arriesgado
Meaning
Involving the possibility of danger, harm, or loss
Example
Investing in that startup is risky but could bring high rewards.
Invertir en esa startup es arriesgado, pero podria traer grandes recompensas.
C1 verb /reɪv/

rave

alabar
Meaning
to speak or write about something with great enthusiasm or admiration
Example
Critics rave about the new movie.
Los críticos alaban la nueva película.
C1 adjective /rɪˈsɛptɪv/

receptive

receptivo
Meaning
Willing to listen to or accept new ideas, suggestions, or experiences.
Example
She was receptive to feedback from her colleagues.
Ella estaba receptiva a los comentarios de sus colegas.
B2 noun /ˈreɪsɪzəm/

racism

racismo
Meaning
the belief that some races are superior to others, leading to unfair treatment or prejudice
Example
The organization works to eliminate racism in all forms.
La organización trabaja para eliminar el racismo en todas sus formas.
C1 noun /rɪˌdʒuːvəˈneɪʃən/

rejuvenation

rejuvenecimiento
Meaning
The process of restoring something to a former better state, especially referring to renewing soil fertility or revitalizing agricultural land through various restoration practices.
Example
Rejuvenation of soil is necessary for sustainable agriculture.
El rejuvenecimiento del suelo es necesario para la agricultura sostenible.
B2 verb /rɪˈliːv/

relieve

aliviar
Meaning
to make pain, distress, or difficulty less severe or serious
Example
The medicine helped relieve his headache.
La medicina ayudó a aliviar su dolor de cabeza.
A2 verb /rɪˈsiːv/

receive

recibir
Meaning
to get or accept something given; to welcome
Example
She receives a gift from her friend.
Ella recibe un regalo de su amiga.
B2 verb /rɪˈsaɪt/

recite

recitar
Meaning
To say aloud something learned, especially poetry or text, from memory.
Example
The child recited a poem in front of the class.
El niño recitó un poema frente a la clase.
B2 adjective ˌrev.əˈluː.ʃən.ər.i

revolutionary

revolucionario
Meaning
Involving or causing a complete or dramatic change.
Example
Revolutionary ideas are reshaping the industry.
Las ideas revolucionarias están transformando la industria.
B2 noun ˈrɛstɪŋ pleɪs

resting place

lugar de descanso
Meaning
A place where someone or something rests, especially a burial site.
Example
The resting place of the martyrs is near the river.
El lugar de descanso de los mártires está cerca del río.
B2 adverb /ˈræp.ɪd.li/

Rapidly

rápidamente
Meaning
at a fast speed; quickly
Example
The company is rapidly expanding into new markets.
La empresa está expandiéndose rápidamente en nuevos mercados.
B2 adjective /ˈrɪdʒ.ɪd/

Rigid

rígido
Meaning
hard and stiff; not able to bend; strict and unwilling to change
Example
The company has a rigid dress code that all employees must follow.
La empresa tiene un código de vestimenta rígido que todos los empleados deben seguir.
C1 verb /ˈræn.sæk/

ransack

saquear
Meaning
to search a place roughly and steal or damage things
Example
Burglars ransacked the house while the family was away.
Los ladrones saquearon la casa mientras la familia estaba fuera.
C1 adjective /rɪˈmoʊtɪd/

remoted

remotado
Meaning
placed at a distance; made remote
Example
The system was remoted to a secure location.
El sistema fue remotado a una ubicación segura.
C2 adjective rɪˈtɛn.tɪv

retentive

retentivo
Meaning
Having strong memory or the ability to retain information for a long time.
Example
Students with a retentive memory excel in academics.
Los estudiantes con una memoria retentiva sobresalen en los estudios.
B2 noun /ˈreɪʃoʊ/

ratio

proporción
Meaning
a relationship between two numbers showing how many times the first number contains the second
Example
The ratio of boys to girls in the class is 2:1.
La proporción de niños a niñas en la clase es 2:1.
C1 adjective /rɪˈpres.ɪv/

Repressive

represivo
Meaning
restraining freedom or preventing self-expression; oppressive
Example
The repressive government banned all forms of protest.
El gobierno represivo prohibió todas las formas de protesta.
C1 adjective /ˈreɪdiənt/

radiant

radiante
Meaning
Shining brightly; expressing great happiness.
Example
She looked radiant in her wedding dress.
Ella se veía radiante con su vestido de novia.
B2 noun /ˌref.jʊˈdʒiː/

Refugee

refugiado
Meaning
a person who has been forced to leave their country in order to escape war, persecution, or natural disaster
Example
The refugee camp provided temporary shelter for thousands of displaced families.
El campamento de refugiados proporcionó refugio temporal para miles de familias desplazadas.
C1 adjective /ˈrɪkɪti/

rickety

deteriorado
Meaning
Poorly made and likely to collapse; shaky.
Example
They crossed a rickety wooden bridge over the river.
Cruzaron un puente de madera deteriorado sobre el río.
C1 noun /ˌrek.ənˌsɪl.iˈeɪ.ʃən/

reconciliation

reconciliación
Meaning
The restoration of friendly relations; the action of making one view or belief compatible with another.
Example
The peace treaty was a major step toward reconciliation.
El tratado de paz fue un paso importante hacia la reconciliación.
C2 noun /ˈræpsədi/

rhapsody

canción exaltada/elogio
Meaning
an expression of great enthusiasm or an epic musical composition
Example
The singer’s performance was a rhapsody of emotions.
La actuación del cantante fue una rapsodia de emociones.
C2 adjective /roʊˈtʌnd/

rotund

redondeado
Meaning
round or plump in shape; full in sound
Example
The rotund cat struggled to climb the fence.
El gato redondeado luchaba por subir la valla.
B1 adjective /rɪˈpiː.tɪd/

Repeated

repetido; que ocurre varias veces
Meaning
done again; happening again; occurring multiple times
Example
He made repeated attempts to contact her.
Él hizo intentos repetidos para contactarla.
C1 adjective /rɪˈtɔːrɪkəl/

rhetorical

retórico
Meaning
relating to the art of effective or persuasive speaking or writing; often a question asked to make a point rather than get an answer
Example
He asked a rhetorical question during the debate.
Hizo una pregunta retórica durante el debate.
B2 noun ˈruθləs ˌkɑmpəˈtɪʃən

ruthless competition

competencia despiadada
Meaning
Fierce and merciless rivalry or contest, without pity or compassion.
Example
Ruthless competition for power leads to societal issues.
La competencia despiadada por el poder lleva a problemas sociales.
C2 adjective /ˈrʌdi/

ruddy

sonrosado
Meaning
Having a healthy red color in the face.
Example
She had a ruddy complexion from working outdoors.
Tenía un rostro sonrosado por trabajar al aire libre.
B1 noun /rɪˈfjuːz/

Refuse

basura; rechazo
Meaning
waste material; garbage; to decline or reject something
Example
Please put the refuse in the designated bins.
Por favor, ponga la basura en los cubos designados.
C2 noun /ruːˈeɪ/

roue

un hombre dedicado a una vida de placer sensual
Meaning
A man devoted to a life of sensual pleasure; a debauched man.
Example
The old roue squandered his fortune on gambling and women.
El viejo roue malgastó su fortuna en juegos de azar y mujeres.
B2 verb /ˌriːˈbɪld/

rebuild

reconstruir
Meaning
to build something again after it has been damaged or destroyed
Example
The villagers worked together to rebuild the bridge after the flood.
Los aldeanos trabajaron juntos para reconstruir el puente después de la inundación.
C1 noun /ˈriːbeɪt/

rebate

descuento/reembolso
Meaning
a partial refund given to someone who has paid too much money for something
Example
The store offered a rebate on bulk purchases.
La tienda ofreció un descuento en compras al por mayor.
A2 noun /ruːlz/

rules

reglas
Meaning
explicit principles or regulations governing conduct or procedure within a particular area of activity
Example
The teacher reminded the students to follow the classroom rules.
El maestro recordó a los estudiantes que siguieran las reglas del aula.
C2 verb /ˌriː.kəˈpɪtʃ.ə.leɪt/

recapitulate

recapitular
Meaning
To summarize and state again the main points of something.
Example
The teacher asked the student to recapitulate the lesson.
El maestro pidió al estudiante que recapitulara la lección.
B1 preposition /rɪˈɡɑrdɪŋ/

regarding

respecto a
Meaning
concerning or relating to
Example
The decision regarding the meeting will be made tomorrow.
La decisión respecto a la reunión se tomará mañana.
A2 verb /riːˈsaɪ.kəl/

recycle

reciclar
Meaning
to process used materials so they can be used again instead of being thrown away
Example
We should recycle paper and plastic to reduce waste.
Debemos reciclar papel y plástico para reducir los residuos.
B2 noun /rɪˈfreʃ.mənt/

Refreshment

refrigerio
Meaning
food and drink that is served as a light meal; something that refreshes
Example
We served light refreshments after the meeting.
Servimos refrigerios ligeros después de la reunión.
C1 adjective /rɪˈstreɪnd/

restrained

restricto
Meaning
characterized by reserve or self-control; held back
Example
Her restrained reaction surprised everyone.
Su reacción restringida sorprendió a todos.
B2 noun /rɪˈsiː.vər/

Receiver

receptor
Meaning
a person or thing that receives something; the part of a telephone containing the earpiece and mouthpiece
Example
She picked up the receiver to answer the phone call.
Ella levantó el receptor para contestar la llamada telefónica.
C2 verb /rɪˈkwaɪt/

requite

corresponder
Meaning
to return or repay a favor, service, or feeling
Example
She requited his kindness with a thoughtful gift.
Ella correspondió su amabilidad con un regalo pensado.
C1 noun /ˌrɛspɪˈreɪʃən/

respiration

respiración
Meaning
The process of breathing or the exchange of gases in living organisms.
Example
Respiration is essential for all living beings.
La respiración es esencial para todos los seres vivos.
A2 verb /roʊl/

roll

rodar
Meaning
to move by turning over and over on an axis
Example
She rolled the ball down the hill.
Ella hizo rodar la pelota cuesta abajo.
C1 noun /ˈruːbrɪk/

rubric

rubrica / directriz
Meaning
A set of instructions, rules, or a heading in a document, often used for grading criteria.
Example
The teacher provided a grading rubric for the assignment.
El maestro proporcionó una rúbrica de calificación para la tarea.
C1 adjective /ˈrɛtroʊˌɡreɪd/

retrograde

retrógrado
Meaning
moving backward or returning to a worse condition
Example
The policy was seen as a retrograde step for human rights.
Se consideró que la política era un paso retrógrado para los derechos humanos.
C1 noun /rɪˈliːf treɪn/

Relief Train

tren de alivio
Meaning
a train that carries emergency supplies and aid to disaster-affected areas
Example
The relief train arrived with food and medical supplies for the flood victims.
el tren de alivio llegó con alimentos y suministros médicos para las víctimas de la inundación.
C1 noun ˈrez.ɪ.djuː

residue

residuo
Meaning
A small amount of something that remains after the main part has gone or been removed.
Example
Soap residue affects appliance efficiency.
El residuo de jabón afecta la eficiencia de los aparatos.
B1 noun /rɪˈkɔːdɪŋ/

recording

grabación
Meaning
the act or process of recording something
Example
The recording of the interview was clear and loud.
La grabación de la entrevista fue clara y fuerte.
C1 adjective /raɪf/

rife

generalizado
Meaning
widespread or common, often in a negative sense
Example
Corruption was rife in the old government system.
La corrupción era generalizada en el antiguo sistema gubernamental.
C1 noun /ˌrɛkwɪˈzɪʃən/

requisition

requisición
Meaning
An official order laying claim to the use of property or materials; a formal demand or request.
Example
The manager submitted a requisition for new office supplies.
El gerente presentó una requisición para nuevos suministros de oficina.
C1 adjective /ˈraʊzɪŋ/

rousing

emocionante
Meaning
Exciting, inspiring, or stirring.
Example
The speaker delivered a rousing speech that moved the audience.
El orador dio un discurso emocionante que movió a la audiencia.
B2 noun /ræɡ/

Rag

trapo viejo; tela desgastada utilizada para limpiar
Meaning
a piece of old cloth used for cleaning; worn-out clothing
Example
She used an old rag to clean the dusty table.
Ella usó un trapo viejo para limpiar la mesa polvorienta.
B1 noun /rɪˈzɔː.sɪz/

resources

recursos
Meaning
A stock or supply of money, materials, staff, and other assets.
Example
The region was rich in herbal resources.
La región estaba rica en recursos herbales.
B2 adverb /ruːˈtiːnli/

routinely

rutinariamente
Meaning
as part of a regular procedure; habitually
Example
The staff routinely checks the equipment for safety.
El personal revisa rutinariamente el equipo para verificar su seguridad.
B2 noun /ˌrɛɡ.jʊˈleɪ.ʃən/

regulation

una norma o directriz hecha y mantenida por una autoridad
Meaning
A rule or directive made and maintained by an authority.
Example
Government regulation ensures fair business practices.
La regulación gubernamental asegura prácticas comerciales justas.
B1 verb /riˈækt/

react

reaccionar
Meaning
to respond or behave in a particular way to something
Example
She reacted angrily when she heard the news.
Ella reaccionó con enojo cuando escuchó las noticias.
C1 noun ˌriː.pɚˈkʌʃ.ənz

repercussions

repercusiones
Meaning
The unintended consequences or effects of an action or event.
Example
The new policy had unintended repercussions on the economy.
La nueva política tuvo repercusiones no deseadas en la economía.
C2 noun /ˈrɪp.lɪt/

ripplet

pequeña ola
Meaning
a small or tiny ripple
Example
Tiny ripplets appeared on the lake as the fish moved.
Aparecieron pequeñas olas en el lago cuando el pez se movió.
C1 adjective /rɪˈvenʒ.fəl/

Revengeful

vengativo
Meaning
seeking or desiring revenge; vindictive
Example
He became revengeful after being betrayed by his friend.
Se volvió vengativo después de ser traicionado por su amigo.
C1 noun ˈrəʊvə

rover

rover
Meaning
A vehicle for driving over rough terrain, especially one driven by remote control over extraterrestrial terrain.
Example
The rover landed on Mars to begin its exploration.
El rover aterrizó en Marte para comenzar su exploración.
C1 noun /riːk/

Reek

oler mal; dar una fuerte impresión de algo desagradable o no deseado
Meaning
to have a very unpleasant smell; to give a strong impression of something unpleasant or undesirable
Example
The garbage can reeks of rotten food.
El cubo de basura huele a comida podrida.
B2 noun /rɪˈsɪp.i.ənt/

Recipient

receptor
Meaning
a person who receives something
Example
She was the recipient of the prestigious award.
Ella fue la receptora del premio prestigioso.
B2 noun /ˈrɒbər/

robber

ladrón
Meaning
a person who steals property from others, often using force or threat
Example
The robber was caught after a quick police chase.
El ladrón fue atrapado tras una rápida persecución policial.
B1 noun /rɪˈleɪ.ʃən/

Relation

relación; vínculo
Meaning
the way in which two or more people or things are connected; a family member
Example
They have a strong business relation that has lasted for years.
Tienen una fuerte relación comercial que ha durado años.
C1 noun ˌrev.əˈluː.ʃən.ər.i ɪˈnɪʃ.ə.tɪv

revolutionary initiative

iniciativa revolucionaria
Meaning
A groundbreaking action or plan that brings about significant change or transformation.
Example
The revolutionary initiative promotes sustainable energy.
La iniciativa revolucionaria promueve la energía sostenible.
C1 verb /ˌriːˈkɒn.stɪ.tʃuːt/

reconstitute

reconstituir
Meaning
to restore something to its original form or state; to reassemble
Example
The group was reconstituted after the leader returned.
El grupo fue reconstituido después de que el líder regresó.
B2 noun rɪˈzentmənt

resentment

resentimiento
Meaning
Bitter indignation at having been treated unfairly.
Example
Resentment grew among the students.
El resentimiento creció entre los estudiantes.
B2 adjective /rɪˈzɪl.i.ənt/

resilient

resistente
Meaning
Able to withstand or recover quickly from difficult conditions.
Example
Resilient materials ensure durability.
Los materiales resistentes aseguran durabilidad.
C1 noun /rɪˈsaɪtl/

recital

recital
Meaning
A performance of music, dance, or poetry, usually by a soloist.
Example
She gave a piano recital at the concert hall.
Ella dio un recital de piano en la sala de conciertos.
C2 noun /ˈrʊkəri/

rookery

nido de aves
Meaning
a place where rooks or other birds breed and nest in colonies
Example
We saw a rookery full of noisy birds near the forest.
Vimos un nido de aves lleno de pájaros ruidosos cerca del bosque.
B2 noun /ˈrɪdəl/

Riddle

acertijo
Meaning
a question or statement intentionally phrased so as to require ingenuity in ascertaining its answer or meaning; a puzzle
Example
The ancient riddle stumped all the scholars for years.
El antiguo acertijo desconcertó a todos los eruditos durante años.
B1 adjective rɪˈlaɪ.ə.bəl

reliable

confiable
Meaning
Consistently good in quality or performance; able to be trusted.
Example
Reliable systems ensure efficiency.
Los sistemas confiables garantizan la eficiencia.
C1 noun /rɪft/

rift

cisura
Meaning
a serious break in a relationship; a split or crack
Example
A rift developed between the two friends after the argument.
Se desarrolló una cisura entre los dos amigos después de la discusión.
B2 noun /ˈreɪtɪŋ/

rating

valoración
Meaning
an evaluation or assessment, usually numerical
Example
The movie received a high rating from critics.
La película recibió una alta valoración de los críticos.
B1 verb /ˈrɛdʒɪstər/

register

registrar
Meaning
To enter or record officially on a list or in a book.
Example
You must register for the conference before the deadline.
Debes registrarte para la conferencia antes de la fecha límite.
B2 noun /red liːf/

Red leaf

hoja roja
Meaning
red-colored leafy vegetable; amaranth leaves used as greens
Example
Red leaf is rich in iron and is commonly eaten in Bengali households.
La hoja roja es rica en hierro y comúnmente se consume en los hogares bengalíes.
C2 adjective /rɪˈmiːdiəbl/

remediable

remediable
Meaning
capable of being corrected or cured
Example
The mistake was serious but still remediable.
El error fue grave pero aún remediable.
B2 verb /rɪˈkɜːr/

recur

repetir
Meaning
to happen again, especially repeatedly or at regular intervals
Example
The headache tends to recur every few weeks.
El dolor de cabeza tiende a recurrir cada pocas semanas.
C1 adjective /rɪˈsɔːrs ɪˈfɪʃ.ənt/

resource-efficient

eficiente en el uso de recursos
Meaning
Using resources in a way that minimizes waste and maximizes productivity.
Example
Resource-efficient farming conserves water and energy.
La agricultura eficiente en el uso de recursos conserva agua y energía.
C1 verb /reɪz/

raze

demoler
Meaning
To completely destroy or demolish something, especially a building.
Example
The old factory was razed to make way for new apartments.
La vieja fábrica fue demolida para dar paso a nuevos apartamentos.
A2 adjective /reər/

Rare

raro
Meaning
not occurring very often; uncommon or unusual
Example
It's rare to find such beautiful handmade jewelry these days.
Es raro encontrar joyas hechas a mano tan hermosas en estos días.
A2 adjective /rɪˈspɒn.sə.bəl/

Responsible

responsable; responsable de; digno de confianza y confiable
Meaning
accountable; having duties; reliable and trustworthy
Example
Parents are responsible for their children's education and well-being.
Los padres son responsables de la educación y el bienestar de sus hijos.
B2 noun /ˈreɪ.zɪnz/

Raisins

pasas
Meaning
dried grapes, often used in cooking and baking
Example
She added raisins to the oatmeal cookies for extra sweetness.
Ella añadió pasas a las galletas de avena para mayor dulzura.
C1 adjective /rɪˈdʌn.dənt/

redundant

innecesario
Meaning
Not or no longer needed or useful; superfluous.
Example
The report contained redundant information.
El informe contenía información innecesaria.
B2 verb /riːp/

reap

cosechar
Meaning
to cut or gather a crop; to receive as a consequence of actions
Example
Farmers reap wheat in the late summer.
Los agricultores cosechan trigo a fines del verano.
C1 verb /ˌriːəˈdʒʌst/

readjust

reajustar
Meaning
To change or move something again in order to achieve a better fit, condition, or balance.
Example
He readjusted the chair to make it more comfortable.
Él reajustó la silla para que fuera más cómoda.
C1 noun /rɪˌsɛptɪˈvɪti/

receptivity

receptividad
Meaning
The ability or willingness to receive something, especially signals or stimuli.
Example
Her receptivity to new ideas helped improve the project.
Su receptividad a nuevas ideas ayudó a mejorar el proyecto.
C1 verb /riːl/

reel

tropezar / enrollar
Meaning
to lose balance and stagger; to wind or spin something onto a reel
Example
He reeled backward after being punched.
Se tropezó hacia atrás después de ser golpeado.
C1 adjective /ˌrɛprɪˈhɛnsəbl̩/

reprehensible

reprensible
Meaning
Deserving strong criticism or blame.
Example
His dishonest actions were truly reprehensible.
Sus acciones deshonestas fueron realmente reprensibles.
B2 adjective /ˈruːθ.ləs/

Ruthless

despiadado; cruel; sin compasión
Meaning
showing no pity or compassion; cruel; merciless
Example
The ruthless dictator showed no mercy to his enemies.
El dictador despiadado no mostró misericordia a sus enemigos.